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时间有限，没有翻译，大家凑合看吧 ！还是很不错的
Pressure Safety Valve Enhancements Storage Tanks [img][/img]
You can now add a storage tank using the Tank Manager and perform low pressure storage tank calculations in HYSYS. HYSYS lets you calculate thermal and liquid movement normal venting requirements in accordance with the latest API 2000 code and calculate emergency venting contingencies. You can view a report summarizing the storage tank calculations by selecting the Calculation Sheet button on the Reports contextual ribbon.
Rupture Disk Analysis [img=77,79][/img]
The HYSYS Safety Analysis environment lets you model RDs independent of PSVs, as per API 520, using the Discharge Coefficient method. You can perform tolerance analysis to ensure that your rupture disk will remain functional in the worst case scenario and modify line sizing criteria to calculate the maximum rated flow. The Documentation Builder is also available for rupture disks.
Determination of Fire Relief Load The Safety Analysis environment calculates the relief load for fire emergency scenarios, importing the simulator latent heat for single component systems in a vessel. HYSYS imports the simulator latent heat for single component systems in the vessel, and you can type a vaporization percentage for the fluid in the vessel. You can calculate the required relief load for a vessel under fire that is vapor-full at relieving conditions, rigorously calculate the relief load for a vessel that contains only a single phase at relieving conditions with no subsequent phase change during the fire, calculate the relief load for a vessel that contains some liquid at relieving conditions, or rigorously calculate the relief load for a vessel that contains only liquid at relieving. Improved/Automated Line Sizing You can now perform more complex line sizing calculations. HYSYS provides automated diameter and schedule selection and features additional pressure drop methods and fittings and a simplified user interface. Multiple Valve Analysis HYSYS lets you perform multiple valve analysis quickly and easily. You can split valves into 2-10 new valves, and then rate and configure your additional valves. This can be useful in a variety of situations, including when the flow is too significant for a single standard valve, when installing multiple valves is cost-effective, or when you want to decrease the area overdesign of a PSV. New Dynamic Compressor Surge Analysis [img=66,75][/img]
HYSYS now lets you perform compressor surge analysis under different emergency scenarios quickly and easily through the use of pre-made templates. Each template includes pre-configured recycle loops, controllers, pipes, valves, and knock-out drums. You can choose one of the three pre-made templates for your configuration or opt to use your own custom template. You can then run and test your sub-flowsheet in the case of Controlled Shutdown, Emergency Shutdown, Total Power Loss, and Discharge Valve Failure. Dynamic results display on pre-made stripcharts, compressor curves profiles, and additional results forms to help you discover the best anti-surge configuration for your compressor. A short tutorial and sample files are included in the \Samples\Compressor Surge Analysis\ path of your install directory. See Resources > Examples on the HYSYS Ribbon bar. Improved Ability to Model Transient Compressor Behavior A new approach that uses momentum equations with compressor non-dimensional cubic curves to model compressor dynamics for gas flow was implemented in HYSYS V8.6. The updated modeling technology lets you model compressor surge transient behavior and study the optimal surge control design. Activated Energy Analysis Enhancements In Activated Energy Analysis, the speed and performance of the retrofit models, particularly, the MILP (Mixed Integer Linear Programming) model in finding solutions is greatly improved for adding or relocating exchangers. The number of solutions is increased as is the speed for retrofit calculation. Acid Gas Cleaning and Related Improvements New Physical Solvents Property Package for Acid Gas Removal Acid Gas Cleaning in Aspen HYSYS now includes acid gas removal using the physical solvent DEPG (Dimethyl Ether of Polyethyelene glycol). DEPG is the constituent of the more well known and commercially available Selexol solvent. Physical solvents are often used in place of or in addition to chemical solvents (amines) to remove unwanted components such as carbon dioxide, hydrogen sulfide, and other sulfur compounds. They are mostly preferred in conditions of high pressure or high concentration of acid gasses. In many cases, physical solvents are used for a first-pass bulk removal of contaminants, or for selective removal of carbon dioxide, followed by a deep removal of the sulfur compounds using amine solvents. The benefit of using physical solvents over chemical solvents is that physical solvents are less corrosive and often more economical because they can be regenerated by a series of pressure-reduction operations requiring little or no application of heat. In Aspen HYSYS V8.6, modeling of acid gas removal using DEPG is fully supported using a properties model based on the PC-SAFT method and rate-based calculations used to solve the absorber and regenerator columns. As in previous releases for amine solvents, the user has the option to solve a column using an Equilibrium model, an Efficiency model, or a full rate-based Advanced Modeling model. A sample case file is included in the \Samples\Acid Gas Cleaning\ path of your install directory. See Resources > Examples on the HYSYS Ribbon bar. New Components for Acid Gas Cleaning: Ammonia and Phosphoric Acid HYSYS 8.6 also supports modeling two important components for acid gas cleaning systems: Ammonia and Phosphoric Acid. Ammonia (NH3) is often present in the feed gas coming into a gas sweetening plant, especially from upstream hydrotreaters and hydrocrackers. It is important to be able to model the removal of ammonia as it can cause operational issues such as equipment fouling or reduced efficiency in downstream processes. HYSYS now allows the modeling of ammonia present in small quantities in the feed gas. Phosphoric Acid (H3PO4) is often used as a stripping promoter in gas treating processes. By adding small quantities of phosphoric acid in the amine stream, many engineers are able to reduce reboiler duty by accelerating the stripping of acid gasses from the amine stream going through the regenerator. In HYSYS, you can now model Phosphoric Acid as a heat stable salt or as a regular component to troubleshoot operations. Acid Gas Property Package Improvements The property parameters accounting for the interaction of MDEA with key hydrocarbons (C1-C5) have been updated based on additional data leading to more accurate prediction of the solubility of these hydrocarbons in MDEA. DBR Amines to 'Acidgas' Package Update/Conversion If a case using either the COMThermo - DBR Amines or the Amine Pkg property packages (dating from before V8.2) is opened in V8.6, HYSYS can automatically update the basis to use the new "Acid Gas" property package. You are prompted when the case loads whether to do the update or not to. If you choose not to, the existing DBR package is used. Note that the update is desirable as the DBRAmines package will eventually be retired in favor of the HYSYS acid gas cleaning packages.
If you choose to proceed with the conversion, a detailed report listing the errors encountered during the conversion of one or more operations using the legacy package is produced. Conversion may fail if the component list contains an amine combination not supported by the Acid Gas package, or if an amine or physical solvent is absent. A column operation may not convert successfully if it contains internals like chimney or sump that are not supported by the Acid Gas property package. Braun K10 Property Package now separate from ComThermo On previous versions the "Braun K10" method was only available as part of the COMThermo property packages. In HYSYS V8.6, the Braun K10 package is available as a "native" HYSYS property package rather than as part of ComThermo. (You can still can select "Braun K10" by adding a "COMThermo" package to create the "COMThermo BK10" package.) There are no differences between the "HYSYS BK10" and "COMThermo BK10" property packages, except for enthalpy, entropy, Cp and flash related to enthalpy (e.g. PH flash. The enthalpy-related calculation results using "HYSYS BK10" may be more accurate than those from the "COMThermo BK10" package. HYSYS Petroleum Refining Assay Manager Enhancements The speed of loading cases containing HYSYS Refining assays and the speed of the assay characterization process are greatly improved. You can adjust the GC distribution (e.g. modifying max boiling point and standard deviation parameters) using an “Advanced Settings” button on the Pure Components tab of the Input Assay of a specific assay. For Assay plots, the HYSYS “Use Auto-Scale” feature is added to the Plot ribbon. This retains user settings when changing Axes data ranges. If the box is unchecked, Assay Manager retains the user values in the Axis input boxes. These will not be affected whenever the plots are updated/refreshed.
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发表于 2014-10-28 10:31:32
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